Need an iOS CoreImage/OpenGLES expert, WILL HIRE TODAY!!!

min $50 USD / hour

Closed

Posted

over 5 years ago

min $50 USD / hour

Need a real expert iOS developer who has strong knowledge of CoreImage/OpenGLES. Beginners will be ignored. Only experts will be considered. IMPORTANT !!! ---- Only experts who do have strong experience in dealing with LARGE images (eg: more than 50MB or bigger than 5000x5000) in iOS will be considered. ---------------------- Please start your proposal with an answer to this question ------------------------------ "How will you manage 5000x5000 of UIImage without any memory issue? And how to save it into a file if it will be more than 50MB?" --------------------------------------------------------------------------------------------------------------------------------------------------- If there's no answer in your bid, will ignore bid immediately. If you even don't know how to manage this kind of LARGE images in iOS CoreGraphics, do not waste time. But if you really have experience in this, please bid, this will be a long-term work. PS: Would prefer to work with expert developers/companies from Europe, North America. Thank you

iPad

iPhone

Mobile App Development

Objective C

Swift

Project ID: 18300642

About the project

8 proposals

Remote project

Active 5 yrs ago

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8 freelancers are bidding on average $53 USD/hour for this job

@WhizPool

Hello, We are experts in CoreImage , not particularly OpenGL though. I have my personal app named as eZy watermark that can watermark huge images. Answer to your question : There can two ways, use image slicing technique, or use coreImage(which uses slicing behind the scene and use CGImageRed for displaying that). GPUImage also does pretty good on the fly slicing. Let me know what your task is please, if you are satisfied ~-~-~-~-~-~- About us ~-~-~-~-~-~- I am Zeeshan, and for most part of last 12 years working over C++(Windows and Mac desktop), Node.JS/PHP/Python (Web and API), Swift/ObjC(iOS) and Java/Kotlin(Android). We have worked over 200+ projects in last 3-4 years alone with the help of a small and very trustable team that works under the same roof. We have best reviews of any freelancer here , 5 / 5 for all the reviews. www.freelancer.com/u/Whizpool.html Thanks, Zeeshan

$55 USD in 40 days

5.0

(62 reviews)

8.6

@EMCALLISTER

"How will you manage 5000x5000 of UIImage without any memory issue? Hi I need to request more information from you about the nature of the images, and what you would like to do with them? If is too be displayed only then we would tile the images, if it is to process the images - could you please provide the possible editing processes you would like so I can better answer your question? If they are textures then there height and width should be a power of 2 if used with OpenGl ES i.e. 4096 x 4096 - but I just don't know what you desire to do with the images. What format are the images in? "And how to save it into a file if it will be more than 50MB?" Is the file to be saved into the apps sandbox, so it can opened later? Saving a 50 MB file can be saved into the NSLibraryDir etc. It's too hard to answer your questions without knowing the whole process. There is no single answer here! I would be interested to hear the whole thing if you have more time? Thanks

$50 USD in 20 days

5.0

(118 reviews)

7.4

@digitalaptech

Hi Answers to your questions: First of all we wont render the 5000 X 5000 image in any UI element. We will resize the image to avoid memory issues, as the highest resolution of iOS device is 2048 x 2732(iPad Pro 12.9 inch). To resize the image we will use ImageIO framework. We will first create the Image source the will generate the thumbnail with kCGImageSourceCreateThumbnailWithTransform option and can use the same. Also we can use CoreGraphics to draw the image to a smaller rect and then convert it back to a UIImage. First of all we will try to compress and reduce the file size but stills if its larger in size as mentioned we will save /download the file in backgroud thread with GCD and completion handler. Also as an alternate solution we can use NSFilehandle or NSStreams to do the same. We have a work experience of more than 8 years in IOS development and we can provide you quality work . I will like to discuss in details , hence will request you to contact me via chat . Regards Kuntal

$50 USD in 40 days

4.6

(14 reviews)

5.8

@pradeep9266

Hi, If we are loading the image from gallery, then we can store the AssetURL, instead of the UIImage; that should take less space and increase speed. When we need to show, can use the thumbnail representation. Please lemme know if you are satisfied by answer or not? I am available for further discussion. Thanks, N....

$50 USD in 40 days

3.3

(4 reviews)

4.6

@CanvasInfotech10

Hello, I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. It seems that you looking for an i iOS developer who has strong knowledge of CoreImage/OpenGLES. Credibility, Though we are new here, But we have +12 years experience team in iOS mobility design and development who are key expertise in objective C, swift, Xcode & Interface Builder, Frameworks and APIs like Foundation, UIKit, and Cocoa Touch, OOP, Bug tracker, Version controls, & UI/UX designs. Demonstrate Reliability, To move forward I would like to discuss regarding on app design themes and development framework which will give me a clear idea about your project concept. While timeline schedule and cost estimation we will discuss on chat. Please let me know if you are looking forward to working with us. Regards, Akash

$55 USD in 40 days

5.0

(1 review)

1.6

@aae4e96

Hi, this is pratik I am a Team Leader of experienced web & mobile developers with a Bachelor of software from the Pacific National University(PNU) and more than 8+ years of experience in Developing. We have a solid experience : Swift, Java, Objective-C, Kotlin, Unity, HTML, CSS, JavaScript, XML, AJAX, JSON, JQuery as well as Angular, React, Vue PHP5, Codelgniter, Wordpress, MySQL, Python . For the last 5+ years I've been working for JavaScript Angular, React and Vue Mobile Swift, Xamarin, Java for Android Augmented/Virtual Reality with High Mathemathical capabilities. New Features (one year) Bitcoin, BitCash, Litecoin, Dogecoin, Ethereum, Flashcoin, PIVX, Syscoin, Vivo, Whitecoin, Build Mining System. Withdraw wallets. Especially, We are Best Experts of ERP, SAP, OCR, Face Recognition and we have our own Engine for OCR and FR. We are all hard-working guys, always focused on the result and quality of my work. We are willing to work 20 hours a day!! Thanks

$55 USD in 40 days

0.0

(0 reviews)

0.0

@michaeldewolfe

How will you manage 5000x5000 of UIImage without any memory issue? Depends on what you want to do woth the image. Any of following, or some combination: 1. Cache a preview 2. Slice the image and load into tiles.

$55 USD in 40 days